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VirtualBox (Oracle VM VirtualBox) is a virtualization software product for Microsoft Windows, Linux, FreeBSD, macOS, Solaris / OpenSolaris, ReactOS, DOS and others
The virtualization system of operating systems VirtualBox retains a strong leadership among ordinary users due to its cross-platform, simplicity and lack of payment for use.
A significant part of users use virtual systems to hide information about opening any files or connecting external media to a computer. At the same time, you should understand that VirtualBox stores some data on your computer about the virtual operating systems used, and this data should be deleted if it is a secret.
We will not consider the system log, which stores information about the launch of the VirtualBox program. I propose to consider where and what data VirtualBox stores about our virtual systems and our activity. Let's start with the generic VirtualBox logs.
The VirtualBox program has its own log, where it records the events occurring with the program from launch to the changes made to the settings.
You can find it at:
Windows: User / .VirtualBox
Linux / macOS: / home / User / Libraries / VirtualBox
An example of a log file opened in a text editor:
This log file was created when creating a virtual machine for one of the systems. Even a user who is not very knowledgeable in VirtualBox will immediately pay attention to information about the operating system and exact time intervals.
We can see that any change in the virtual OS related to the resources of the host system is committed. From this log, you can find out which systems the user used, at what time he did it, for how long and how actively.
There is one more log maintained by VirtualBox, namely the virtual machine usage log, which is stored at:
Windows: User / VirtualBox VMs
Linux / macOS: / home / User / VirtualBox VMs
It can also be viewed through the main VirtualBox menu.
If in the first case the logs were of a general nature, then in this case they represent a detailed log of settings and user actions with a specific virtual machine.
Unfortunately, the developers did not provide for the function of automatic deletion of log files, and therefore the user must perform the cleaning manually. Remember that the log will be created again the first time the virtual machine is started and, even worse, when the virtual machine is deleted, the logs with information about its use are saved.
The virtualization system of operating systems VirtualBox retains a strong leadership among ordinary users due to its cross-platform, simplicity and lack of payment for use.
A significant part of users use virtual systems to hide information about opening any files or connecting external media to a computer. At the same time, you should understand that VirtualBox stores some data on your computer about the virtual operating systems used, and this data should be deleted if it is a secret.
We will not consider the system log, which stores information about the launch of the VirtualBox program. I propose to consider where and what data VirtualBox stores about our virtual systems and our activity. Let's start with the generic VirtualBox logs.
The VirtualBox program has its own log, where it records the events occurring with the program from launch to the changes made to the settings.
You can find it at:
Windows: User / .VirtualBox
Linux / macOS: / home / User / Libraries / VirtualBox
An example of a log file opened in a text editor:

This log file was created when creating a virtual machine for one of the systems. Even a user who is not very knowledgeable in VirtualBox will immediately pay attention to information about the operating system and exact time intervals.
We can see that any change in the virtual OS related to the resources of the host system is committed. From this log, you can find out which systems the user used, at what time he did it, for how long and how actively.
There is one more log maintained by VirtualBox, namely the virtual machine usage log, which is stored at:
Windows: User / VirtualBox VMs
Linux / macOS: / home / User / VirtualBox VMs
It can also be viewed through the main VirtualBox menu.
If in the first case the logs were of a general nature, then in this case they represent a detailed log of settings and user actions with a specific virtual machine.
Unfortunately, the developers did not provide for the function of automatic deletion of log files, and therefore the user must perform the cleaning manually. Remember that the log will be created again the first time the virtual machine is started and, even worse, when the virtual machine is deleted, the logs with information about its use are saved.